Vibrator and method for manufacturing the same

Details Vibrator and method for manufacturing the same Vibrator and method for manufacturing the same

2007-07-17

2007-07-17

Mulling, Burton S. (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Reciprocating

C310S081000, C310S017000, C381S400000

Reexamination Certificate

active

10787081

ABSTRACT:
A vibrator of the present invention comprises a coreless coil (2), a driver (4) including a magnet (4a) inserted in the coreless coil (2), a yoke (4b) for pinching the coreless coil (2) and facing the magnet (4a), and a top plate (4c), suspensions (6and8) for carrying resiliently the driver (4). The driver (4) is reciprocated in an axial direction of the coreless coil (2) by applying an alternate current to the coreless coil (2) to generate vibrations. The vibrator can be miniaturized without increasing a cost and has a good rising of vibrations.

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